sperry



(N0 Model.) I

E. A. SPERRY.

ELECTRIC BATTERY.

Patented Feb. 19, 1889-.

N. PETERS, Plwkoulhngfipher. Washington nc UNITED STATES PATENT QEEIcE.

ELMER A. SPERRY, OF CHICAGO, ILLINOIS, ASSIGNOR TO FRANK S. vTERRY, OF SAME PLACE.

- ELECTRIC BATTERY.

SPECIFICATION forming part Of Letters Patent N0. 397,945, dated February 19, 1889.

Application filed March 24, 1883- Serial No. 268,447. (No model.)

To all whom it may concern: ers the metallic rings and the clamped por- Be it known that I, ELMER A. SPERRY, a tion of the carbons when the whole is in pocitlzen of the United States, residing at Ohisition, as indicated in Fig. 3.

cage, in the county of Cook and State of Illi- G is a washer about the zinc and resting on nois, have invented anew and useful Electric the cover. 5 5 Battery, of which the following is a specifica- J is a collar about the zinc resting upon.

iOII- such washer, and K is a pin through the zinc, My invention relates to electric batteries or and thus the zinc is kept from passing too far cells, and has for its object to provide certain into the jar.

1o novel features of construction, more partieu- The use and operation of my invention are 60 larly illustrated in the accompanying drawas follows: The upper end of each carbon is lngs, wheremplaced in a metallic ring, D. This ring may Figure 1 is a cross horizontal section taken be made of any desired materialpreferably, through the jar below the top and looking upof course, of lead-and is independent in all ward against the top. Fig. 2 is a plan View portions, except where itis secured to or made 65 of the metallic carbolrsupporting ring. Fig. continuous with the central metallic ring, D. 3 is a Vertical section taken through the jar. The ring D is broken at one side and has the Fig. 4 is a detail of the device for securing the lips, which are drawn together by the screw carbon-ring. D By turning this screw the carbon may be Like parts are indicated by the same letclamped in position and a very strong press 70 ter in all the drawings. ure applied to its upper end, so as to diminish A is a jar. the resistance thereof. The top of the jar is B is the cover thereto, having the ledge B. made of wood or porcelain or other suitable B is a dependent rim adapted to pass inmaterial, and is made so as to cover the jar side the top of the jar. and its rim to pass therein, as shown in Fig. 3. 75

B is a central cylindrical zinc-guide in the As many carbons as may be required can be center of the top, being flared at its lower end I arranged in this manner about the central at B, as indicated. ring. The metallic rings filled with the car- 0 C are carbons secured each in a metallic bons are then placed in position on the inner ring, D D. These rings are secured each to side of the jar-cover, the central ring, D, en- 80' the central ring, D, and are formed each with circling the cylindrical pendant B The depth two lips, D D through which passes the of the rings D and D is a trifle less than the screw D whereby the lips may be drawn todepth of the brim or rim B The carbon-cargether, and thus the metallic rings be conrying rings are now secured in position by tracted to clamp the end of the carbon. -Two means of any desired number of screws 85 or more of these rings are formed with caps D which are introduced through suitable Dfihaving each a raised cy1inder,D thereon, apertures in the top or cover and pass into which said cylinders are bored out to receive the apertures in the cylindrical projections screws D whichthus secure the metallic. D on the caps D Then these screws are rings composing the carbon-holders tightly to driven home, the carbons are securely at- 90 the lower side of the cover. tached, together with their clamping metal- D is a similar ring-cap having the cylinder licrings, to the inner portion of the cover. D from which projects the screw-rod D upon The cover is now placed with the carbons upwhich is placed the thumb-screw D 9. ward, and is filled with paraffine or other simi- E is a zinc piece corrugated on its lower lar insulating material to the top of the rim, 5 end, having the thumb-screw E at its upper so as to cover all of the metallicv portions of end and the aperture E passing through it. the rings which support the carbons, and also At its lower end is the washer to fill the cover of the jar with the insulating F is abody of paraffine, which entirely fills material, from which nothing but the central the inner portion of the lidor cover and covpendant of the cover and the carbons project.

sition as to be included within the circle whose center is the center of the ring D and whose circumference is tangential to the points on the rings 1) D farthest from the center of the rings D. The zinc is passed through the aperture in the pendant B, and is held in position by the collar, washer, and pin. The zinc is corrugated at its lower end to furnish the largest possible surface for chemical action. The washer It keeps the zinc from contact with the carbon s, and should be of insulating material. The pendant 13 is hollowed or flared out internally toward its lower extremity, as indicated at the point B", so that the zincE touches the top or the cover of the jar in a single plane, and that plane practically identical with the top of the cover. The connections are made to the jar in the usual manner, the carbon wire being placed under and secured by the thumb-nut D and the zinc wire being placed in the aperture E and clamped by the set-screw E. The arrangement of the carbons in this manner enables me to clamp their upper ends very securely and very tightly and about their entire circumference. The arrangement of carbons about the central ring, D, also permits of their being brought very closely together at their upper ends, and also permits the carbon wire to be attached at the nearest possible point to the zinc, or to the center of all the carbons, thus giving the shortest possible route of the currentbetween such point of delivery and the carbons. The paratfine makes a complete insulation for the carbons, and the pendant Bi, shaped as shown internally, prevents the liquid in the jar from assuming such a position on any part of the cover as to connect directly from carbons to zinc, and thus short-circuit the battery. In any commotion or violent agitation of the jar the liquid which it contains will or may be thrown against the underportion of the cover; but it will immediately drop oli of the edges of the pendant B, and will not form in a coating at any place so as to short-circuit.

By having the cylindrical projections D upon the caps D, which projections pass upward through suitable apertures in the top or cover, we are enabled to have a long aperture into which to introduce the securing-screw, and thus we are enabled to tightly secure the carbon-holding rin to the top. The battery as arranged according to my invention has nothing jn'ojecting above the cover except the parts to which the wires are actually secured and the screws which attach. the carbon-holding rings to the cover, thus makin a jar with a very beautiful exterior.

Having thus described my invention, what I clz'igini, and desire to secure by Letters Patent, is as follows:

1. In a battery, the combination of a jar with a cover, a series o carbons, and carbonsecuring rings, said carbons and rings being secured to and entirely beneath the cover.

2. In a battery, the combination of a jar with a'cover, a series of carbons, carbon-securing rings attached to the lower side of the cover, and a body of insulating material on the under side of said cover, in which the carbon-securing rings'are entirely submerged.

3. In a battery, the combination of a jar with a cover provided with a pendent rim, a series of carbons, carbon-clamping rings secured to said cover within the rim, and a body of insulating material filling the space inclosed by the rim, and submerging the clampin g-ri ngs.

4:. In a battery, the combination oi a jar with a cover provided with a pendent rim and a somewhat longer pendent zinc-guide, aseries of carbons, and carbon-supporting rings secured to the cover in the space be tween the rim and the guide. V

5. In a battery, the combination of a jar with a cover provided with a pendent rim and a somewhat longer pendent zinc-guide, a

series of carbons and carbon-supporting rings secured to the cover in the space between the rim and the guide, and a body of insulating material in the space between the rim and the guide and submergin g the clampin rings.

6. In a battery, the'combination of a jar, a cover provided with a pendent rim inside the jar, and a zinc-guide internally enlargeifl at its lower end, with a series of carbons and clamping-rings secured to said cover, a zinc passed through the guide, and a body of insulatin g material between the cover and guide and submerging the carbon-clamping rings.

7. In a battery, a carbon-clamping device consisting of a series of contractible rings] 8. In a battery, a carbon-securing device consisting of a series of contractible rings provided each with a clamping device.

9. In a carbon-securing device, a series of contractible rings provided each with a clamping device and all secured to a central supporting-piece.

10. In a battery, it carbon-securing device consisting of a central ring with a series of contractible rings secured thereto, in combination with a jar-cover, on the lower side of which such earbolrsecuring rings are secured.

11. In a carbon battery, the combination of a jar with a cover provided with a pendent rim and a somewhat longer central pendent zinc-guide, the inner surface of which is enlarged toward its lower end, carbon-securing rings attached to the cover between the rim and guide, insulating material. in which rings are sulnnerged, and a zinc of such size as to engage the cover near the top of the guide only, so as to prevent the liquid in the jar from making a short circuit on the lower side of the cover between the zinc and carbons.

12. In a carbon battery, the combination ol' a carbonsecuring device with a cover, said cover provided with apertures and said can tion to afford increased contact-surface with the liquid.

ELMER A sPERRY.

Witnesses:

CORA L. CADWALLADER, JOHN R. NETTENSTROM. 

